[CISA Malcolm]: CISA Malcolm Advisory: Affected Sectors, CVSS 8.8, and Vulnerability Types

Which sectors should review the October 1, 2026 CISA Malcolm advisory?

Organizations in three sectors should review the October 1, 2026 CISA Malcolm advisory: Energy, Information Technology, and Water and Wastewater.

Sectors named by CISA

The advisory identifies Malcolm as the affected product and says the product is deployed worldwide.

If your organization uses Malcolm in one of those sectors, the advisory is directly relevant based on the provided context.

Why review is important

CISA assigned the advisory a CVSS v3 score of 8.8. The listed weakness types include cross-site scripting, operating system command injection, path traversal, server-side request forgery, spoofing-based authentication bypass, and authorization problems.

The context also names other concerns, including missing authentication for a critical function, default credentials, weak password-hash effort, certificate validation issues, open redirect, and vulnerable third-party dependencies.

Check the source for current guidance

The provided summary does not include patch instructions or mitigation steps. Review the CISA advisory itself for the latest product-specific direction.

What should Malcolm operators prioritize after the CISA advisory with CVSS 8.8?

Malcolm operators should first confirm whether they run the affected product, then review the advisory’s listed vulnerability categories against their deployment.

What to prioritize

The context supports these immediate review points:

• Confirm whether Malcolm is deployed.
• Note that CISA assigned a CVSS v3 score of 8.8.
• Check whether the deployment is in Energy, Information Technology, or Water and Wastewater.
• Review the listed weakness types, including command injection, path traversal, server-side request forgery, authentication bypass, and authorization problems.
• Look for the additional concerns named by CISA, including default credentials and missing authentication for a critical function.

Why this is a triage issue

The advisory combines a high CVSS score with multiple categories of weaknesses. Some relate to authentication and authorization, while others involve request handling, redirects, certificates, dependencies, and command execution.

The provided context does not say which fixes are available or which versions are affected beyond identifying Malcolm as the product. Operators should use the CISA advisory for current remediation details.

What kinds of vulnerabilities are listed for CISA Malcolm in the advisory?

CISA’s Malcolm advisory lists several vulnerability types, covering web flaws, authentication problems, authorization issues, and dependency-related concerns.

Vulnerability types named in the advisory

The provided context lists these weakness types:

Additional concerns CISA listed

The advisory context also names:

• missing authentication for a critical function
• default credentials
• weak password-hash effort
• certificate validation issues
• open redirect
• vulnerable third-party dependency concerns

What the list does and does not tell you

The list shows the kinds of weaknesses CISA identified for Malcolm and that the advisory has a CVSS v3 score of 8.8. It does not, in the provided context, give patch steps, exploit details, or environment-specific impact.

For operational decisions, check the CISA advisory directly because vulnerability guidance can be updated.

Sources / Learn more

• CISA

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